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01691 770366   |   sales@selectschoolsupplies.co.uk

 
 
 

Rain Indicator Alarm

£3.35

£3.35

9165


A very simple circuit with
useful applications.
When rains falls on the
printed sensor, a signal is
generated which
activates an LED and/or
audible alarm via speaker
included.
Power supply: 9VDC (PP3
battery) - not included

*PLEASE NOTE WE ONLY SUPPLY CHEMICALS TO EDUCATIONAL ESTABLISHMENTS *

Please contact us if you need more informaton on this product

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